It is a fact that the borders have been semi-permeable for a long time.

Like a semi-permeable cell wall they only allow certain thoughts to pass through.

They have semi-permeable membranes, which allow water in but keep most of the salt out.

The movement of water by diffusion through a semi-permeable membrane.

By the 19th century it was accepted that some form of semi-permeable barrier must exist around a cell.

While both China and Vietnam appear open to trade from the rest of the world, the border they share is only semi-permeable, it seems.

Because the membrane of the cells is semi-permeable, certain ions cannot usually pass into the cell.

Osmosis is when water passes through a semi-permeable layer to reach equilibrium.

As the shell grew, the back compartments were sealed with a semi-permeable membrane.

A semi-permeable membrane allows solvent particles to pass in both directions.

Pre-cells would have had semi-permeable membranes, allowing only certain molecules to pass through.

Nitrox systems use semi-permeable membranes to separate out a portion of the nitrogen in air.

Each chloroplast is surrounded by a double walled semi-permeable membrane.

It is semi-permeable because some substances can penetrate it freely, whereas others cannot.

Reverse osmosis uses a semi-permeable membrane to separate water from dissolved salts.

Filter paper, a semi-permeable paper barrier placed perpendicular to a liquid or air flow.

These claims are not likely as the skin is only semi-permeable and is not able to conduct toxins out of the body.

It is generally fired at lower temperatures than either stoneware or porcelain, and can remain semi-permeable to water until glazed.

They surround cells and organelles with a semi-permeable barrier that prevents free flow of substances.

His body started the process automatically, exuding a transparent liquid that hardened into a tough semi-permeable membrane.

A vacuole is surrounded by a thin layer of cytoplasm which acts as a semi-permeable membrane.

This dressing should, in turn, be covered with a semi-permeable dressing to provide a barrier to vaccinia virus.

Products combining an absorbent base with an overlying semi-permeable layer can be used to cover the vaccination site.

The skin of the slug acts as a semi-permeable membrane where there are different concentrations of salt and water on each side.

Another example is in separation and mixing of gases, with use of chemically semi-permeable membranes.

A semipermeable, transparent barrier kept the air in the bay from rushing out.

Though the different systems are at equilibrium, there is still water passing through the semipermeable membrane.

He states "only water molecules can pass the semipermeable membrane.

Many natural and synthetic materials thicker than a membrane are also semipermeable.

At Caterpillar earlier this year, the picket line was a semipermeable membrane.

Osmosis is the transmission of a liquid through a semipermeable membrane.

This has to do with osmosis or the diffusion of water across a semipermeable membrane.

In the situation most often encountered, the semipermeable membrane separates one liquid solution from another.

The human wore a breather, a semipermeable membrane that was nearly invisible over his face.

In science, Permeability, permeable and semipermeable may refer to one of the below.

It is similar to osmosis in that they both involve the semipermeable nature of the cell membrane.

Another example of a semipermeable membrane is dialysis tubing.

Something martian was still seeping through the semipermeable membrane.

It's durable and semipermeable, so just enough water penetrates to soften the glue for removal.

A semipermeable force field was keeping all but the workers and Starfleet personnel away from the site.

With reverse osmosis, he said, water under pressure is passed through an extraordinarily fine semipermeable membrane.

The fiber wall acts as the semipermeable membrane.

Membrane processes use semipermeable membranes and pressure to separate salts from water.

Bonded Logic recommends the use of a semipermeable barrier with its denim insulation.

Fresh water moves in a semipermeable membrane and increases its volume in the chamber.

The cells of the strawberry have semipermeable membranes.

The placenta is a semipermeable membrane that allows certain substances to travel through to the fetus.

It signaled that the semipermeable force field between the bay and the tinted sea of gases outside was about to fizzle out.

The semipermeable forcefield made it feel as if he were slipping into a warm bath through a tingling resistance.

The forcefield is semipermeable only to human beings and what they wear, thought Harman.